Question : Identify an example of organisms that are free-swimming and bottom-dwelling forms.

Option 1: Phytoplankton

Option 2: Zooplankton

Option 3: Fungi

Option 4: Jellyfishes

Question : In a lake ecosystem, the primary consumers are ________.

Option 1: zooplankton

Option 2: phytoplankton

Option 3: bacteria

Option 4: fishes

Question : Identify an example of organisms that do not belong to the third trophic level.

Option 1: Fishes

Option 2: Wolves

Option 3: Birds

Option 4: Cows

Question : Identify an example of diploblastic animals.

Option 1: Platyhelminthes

Option 2: Arachnids

Option 3: Chordates

Option 4: Coelenterates

Question : Identify an endoparasite found in animals

Option 1: Pleurobrachia

Option 2: Ctenoplana

Option 3: Flatworms

Option 4: Adamsia